Temperature changes for comfortable work! Your summer ally, wearable air conditioning! The largest surface area! A new Peltier vest specialized for cooling ●Product Features● ●Sustainable comfortable work! Collaboration with a specialized company and a leading university! ・Peltier wear based on verification tests supervised by Tohoku University Hospital ・Safe and secure design developed and produced by Shiftall, a cutting-edge wearable manufacturer ●Amazing speed cooling! ・Cooling starts in about 1 second at the fastest ・Maximum about -19°C <surface temperature about 6°C> (※Temperature difference from the device surface temperature when the ambient temperature is about 25°C) ・Large-area aluminum plate of 76cm2 cools the back ・You can feel the cooling sensation in an environment of 40°C! ●New function! Added fluctuation function ・Cooling operates for 40 seconds and stops for 15 seconds. ON/OFF repeating function ・Reduces sudden cooling ●Choose your preferred cooling sensation with 3 modes ・Adjustable in 3 stages: strong / weak / fluctuation ・Comes with a 10,000mAh battery ・Continuous operating time: Strong: 5 hours, Weak: 8 hours, Fluctuation: 6 hours ●Fits various body types! ・Free size design that supports S~5L sizes ・Easy to move around because it uses stretchy fabric! ・Structure that prevents slippage and enhances fit to the body by adjusting the front and side belts ～★Correct wearing combinations★～ ① Compression or other thin innerwear × Peltier vest ② Compression or other thin innerwear × Peltier vest × Fan-equipped wear ③ Compression or other thin innerwear × Peltier vest × Wear with high breathability on the back ※If you wear clothes over this product, wearing clothes with poor breathability may trap heat.